Maybe that was all he wanted at first--one night of blood-soaked earth for one really great chuckle, but one thing was, without a doubt, not a “maybe”: whatever his intentions for any day after that first day, that first laugh, someone was going to have to stop him. After all, it was just too good a joke to stop telling.
A stalker watches a family for months. The stalker gains the confidence to move into the family’s home. For reasons undetermined, perhaps the exposition of their “haunting”, the stalker becomes a murderer. After the murders, the evil or insane murder lives in the home for a few days as though it is their own. Wears the clothes of the victims, eats their food, sleeps in their bed.